40665677656604 has 96 divisors (see below), whose sum is σ = 95562936000000. Its totient is φ = 14623057877760.

The previous prime is 40665677656573. The next prime is 40665677656699.

40665677656604 is nontrivially palindromic in base 10.

40665677656604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29348822 + ... + 30703170.

It is an arithmetic number, because the mean of its divisors is an integer number (995447250000).

Almost surely, 2^{40665677656604} is an apocalyptic number.

40665677656604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40665677656604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47781468000000).

40665677656604 is an abundant number, since it is smaller than the sum of its proper divisors (54897258343396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40665677656604 is a wasteful number, since it uses less digits than its factorization.

40665677656604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361883 (or 1361881 counting only the distinct ones).

The product of its (nonzero) digits is 914457600, while the sum is 68.

The spelling of 40665677656604 in words is "forty trillion, six hundred sixty-five billion, six hundred seventy-seven million, six hundred fifty-six thousand, six hundred four".